Pump.



Patentei sept. 4, |900.

PUMP

(Application filed Oct. 8, 1898.)

.A 7.1 [im (No Model.)

inn rares PATENT OFFICE.

GEORGE G. GUY, OF BAIAVIA, ILLINOIS, ASSIGNOR TO THE UNITED `STATES WIND ENGINE AND PUMP COMPANY, OF SAME PLACE.

PUMP.

SPECIFICATION forming part 0f Letters Patent N0. 657,102, dated September 4, 19O.

Application led October 6, 189 8. Serial No. 692,839. (No model.)

To all whom it may concern:

Be it known that I, GEORGE G. GUY, a citi'- zen of the United States, residing at Batavia, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

My invention relates to certain new and useful improvements in pumps intended prima` rily for tubular wells, but which may be employed in any variety of pumps desired.

My invention relates first to an improved strainer adapted to be attached to the bottom ofa pump, especially in tubular wells, to prevent the entrance of gravel, cbc., and is designed to produce a strainer that will be effective in operation, adjustable to any desired capacity, and which can be cheaply and easily constructed.

To this end I construct my strainer of ana nular sections having notched edges which can be readily cast and which when united form a cylindrical strainer whose capacity may be varied as desired by increasing or diminishing the number of annuli employed.

My invention further relates to the construction and mounting of the lower valve in the dome, whereby I am enabled to secure the valve in place without forming any projec-V tions on the outside of the dome or increasing its size, so as to necessitate the boring of a well of larger diameter than the exterior diameter of the dome.

Referring to the accompanying sheet of drawings, in which the same letters of reference are used to designate identical parts in all the views, Figure lis an elevation of my invention showing the dome and strainer in position. Fig. 2 is a section on the line 2 2 of Fig. l. Fig. 3 is a top plan view of the bottom valve and its seat. Fig. 4 is a section on the line 4 4 of Fig. 3. Fig. 5 is an inverted perspective of one of the annuli composing the strainer, and Fig. 6 is a top plan View of the modified annulus forming the bottom of the strainer.

A represents the dome, which is of a gen erally-cylindrical shape somewhat contracted at its upper end and which is interiorly screwthreaded to receive the tubing. Extending diametrically across the upper portion of the dome is the cross-.piece A', Whichhas a central aperture which is interiorly screw-threaded to receive the bolt B. The function of this cross-piece A is to furnish means of attaching the spider O, carrying the lower valve or valves D,to the dome without the employment of exterior lugs, as has been heretofore customary.

The spider O consists of the annulus and the cross-piece O', which is similar to the cross-piece A' and is similarly connected to the boltB. The annular portion of the spider is contracted on its upper side, which coutracted portion forms a shoulder C, upon which the lower end of the dome A is seated, the leather washer D being interposed to make a fluid-tight joint.

The valves D are conveniently constructed of a leather disk D2, secured to the cross-piece C by the screws Dsaud having the substantially-semicircular metallic pieces D4 secured to the upper side thereof by the screws D3 to give the valve the necessary weight and stiffness.

The spider O is secured in position by the bolt B, which has the nuts B and B2 located above the cross-pieces A and C', respectively. If no strainer is employed, I would employ a nut or nuts on the lower side of the crosspiece O; but in the form shown with the strainer I employ the double-threaded connecting-nut B3, as hereinafter described.

The strainer E is composed of a series of annuli E, one of which is shown in perspective in Fig. 5. These annuli have the inner ring e, which has formed integral therewith the outer ring e', which has the deep notches e2 therein. The inner and outer rings overlap, so as to form imbricated joints, as shown in Fig. 2. The notched edge of the upper- Amost annulus E takes into the interior shoulder O3, formed in the lower side of the spider C. The lowermost annulus E2 differs from the others in that it does not have the inner ring e, but a perforated web e3, forming the bottom of the strainer. The bolt B4, secured in the connecting-nut B3, passes through the centrally-located aperture c4 in the lowermost annulus or disk E2, and the nuts B5, coperatin g therewith serve to secure the various annuli together, so as to make a ICO . practically rigid strainer with a large number of small perforations. VThe objects in constructing the strainer of annuli are to make a construction that can be readily cast, which would be hard to do if it were integral, and to make a strainer that can be readily adjusted to any size desired.

While I have shown my inventionv as embodied in the form which I at present consider best adapted to secure the advantages thereof, it will be understood that it is capable of some modifications and that I do not desire to be limited tov theeXact form shown and described; but

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. A strainer for'pumps, dac., composed of the dome Athe spider Cfor the valve-seat secured to the under side of the dome A, the disk E2 beneath said spider, the overlapping annuli E having the notches e2 in the edges deeper than the overlappin g portion, all these parts overlapped and coperating to form a rigid perforated tube of which the dome A is the top and the disk E2 the bottoni, and rigid connections between the spider O and the disk E2, substantially as shown and described.

2. A strainer for pumps, &c., composed of a dome the spider for the valve-seat secured to the under side of the dome, the spider forming the upper end of the tube, with the disk forming the lower end of the tube, the

annuli having their edges notched substantially as shown and interposed between the spider and the disk, all the parts overlapped and coperating to form a rigid perforated i tube, and the bolt connecting the spider and the disk and clamping the, annuli in place.

3. In a pump, the combination of the dome A having the cross-piece A2 therein, with the valve-spider C having the shoulder C2 upon its upper side forming a seat for the dome and the interior shoulder C2 on its lower side forming a seat for the uppermost annulus E', the annuli E coperating to form a perforated cylinder, and bolts for connecting the spider to the dome and to the annuli, substantially as shown and described.

4:. In a pump, the combination of the dome A having the crosshpiece A2 therein, with the Valve-spider C having the shoulder C2 upon its upper side forming a seat for the dome and the interior shoulder C3 ou its lower side forming a seat for the uppermost annulus E', the annuli E cooperating to form a perforated cylinder, a perforated disk E2 forming the bottom of said cylinder, and bolts for connecting the spider with the cross-piece A2 and the disk E2, substantially as and for the purpose described.

GEORGE G. GUY. Witnesses:

ALLAN A. MURRAY, LOUISE E. SERAGE. 

